A man and woman look at information on a table that advocates a two-child only policy as a means of population control. A group of people can be seen sitting on the ground behind them. A poster on the table says, "The two child family means...

Demonstrators (apparently all male) carrying handmade picket signs walk across campus past Brigman Hall in a march that kicked off a three day environmental teach-in sponsored by the University of Louisville on April 9, 10 and 11, 1970. Other...

A man wearing a baseball jacket and glasses and standing at the edge of a playground holds a sign that says, "HOW LONG CAN WE CARRY ON." Young women sit on swings in the background. He presumably was participating in a demonstration march that...

Four men in suits and ties watch the demonstration march that kicked off a three day Environmental Teach-In sponsored by the University of Louisville on April 9, 10 and 11, 1970. A protest sign reading"give earth a chance" is visible in the corner....

A man wearing a gas mask holds a clipboard steady for another man signing what is probably some kind of petition. The photograph was taken during a three day Environmental Teach-In sponsored by the University of Louisville on April 9, 10 and 11,...

Several people look over information tables and posters that appear to describe various kinds of pollution. A map titled "OPEN YOUR EYES" leans against one of the tables. A mannequin wearing a surgical mask stands in the foreground looking up at...